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dbcsmap.c
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dbcsmap.c
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#include "dbcsmap.h"
/* ------------------------------------------------------------------------- *
* Main program (including initialization, message loop, and final cleanup) *
* ------------------------------------------------------------------------- */
int main( int argc, char *argv[] )
{
DCMGLOBAL global;
HAB hab; // anchor block handle
HMQ hmq; // message queue handle
HWND hwndFrame, // window handle
hwndAccel, // acceleration table
hwndHelp; // help instance
QMSG qmsg; // message queue
HATOMTBL hSATbl; // handle to system atom table
HELPINIT helpInit; // help init structure
CHAR szRes[ SZRES_MAXZ ], // buffer for string resources
szError[ SZRES_MAXZ ] = "Error";
BOOL fInitFailure = FALSE;
ULONG ulrc;
hab = WinInitialize( 0 );
if ( hab == NULLHANDLE ) {
sprintf( szError, "WinInitialize() failed.");
fInitFailure = TRUE;
}
if ( ! fInitFailure ) {
hmq = WinCreateMsgQueue( hab, 0 );
if ( hmq == NULLHANDLE ) {
sprintf( szError, "Unable to create message queue:\nWinGetLastError() = 0x%X\n", WinGetLastError(hab) );
fInitFailure = TRUE;
}
}
if ( ! fInitFailure ) {
global.hab = hab;
global.hmq = hmq;
global.fCopyUCS = TRUE;
global.uconvCP = NULL;
global.psuCopied = (UniChar *) malloc( sizeof(UniChar) );
if (global.psuCopied) global.psuCopied[ 0 ] = 0;
strcpy( global.szFont, "Times New Roman MT 30");
// ULS conversion object for Unicode/UCS <-> internal Unicode processing format
ulrc = UniCreateUconvObject( (UniChar *)L"IBM-1207@path=no,map=display", &(global.uconv1207) );
if ( ulrc != ULS_SUCCESS ) global.uconv1207 = NULL;
// Make sure the Unicode clipboard format is registered
hSATbl = WinQuerySystemAtomTable();
global.cfUniText = WinAddAtom( hSATbl, "text/unicode");
// Create custom controls & load the main dialog window
WinRegisterClass( hab, "GlyphPreview", PreviewWndProc, CS_SIZEREDRAW, sizeof(PGLYPRCDATA) );
WinRegisterClass( hab, "ClipboardView", ClipWndProc, CS_SIZEREDRAW, sizeof(PCBVIEWDATA) );
hwndFrame = WinLoadDlg( HWND_DESKTOP, HWND_DESKTOP,
MainWndProc, 0, ID_MAINPROGRAM, &global );
if ( hwndFrame == NULLHANDLE ) {
sprintf( szError, "Failed to load dialog resource:\nWinGetLastError() = 0x%X\n", WinGetLastError(hab) );
fInitFailure = TRUE;
}
}
if ( fInitFailure ) {
WinMessageBox( HWND_DESKTOP, HWND_DESKTOP, szError, "Program Initialization Error", 0, MB_CANCEL | MB_ERROR );
} else {
// Initialize acceleration table
hwndAccel = WinLoadAccelTable( hab, 0, ID_MAINPROGRAM );
WinSetAccelTable( hab, hwndAccel, hwndFrame );
// Initialize online help
if ( ! WinLoadString( hab, 0, IDS_HELP_TITLE, SZRES_MAXZ-1, szRes ))
sprintf( szRes, "Help");
helpInit.cb = sizeof( HELPINIT );
helpInit.pszTutorialName = NULL;
helpInit.phtHelpTable = (PHELPTABLE) MAKELONG( ID_MAINPROGRAM, 0xFFFF );
helpInit.hmodHelpTableModule = 0;
helpInit.hmodAccelActionBarModule = 0;
helpInit.fShowPanelId = 0;
helpInit.idAccelTable = 0;
helpInit.idActionBar = 0;
helpInit.pszHelpWindowTitle = szRes;
helpInit.pszHelpLibraryName = HELP_FILE;
hwndHelp = WinCreateHelpInstance( hab, &helpInit );
WinAssociateHelpInstance( hwndHelp, hwndFrame );
// Now run the main program message loop
while ( WinGetMsg( hab, &qmsg, 0, 0, 0 )) WinDispatchMsg( hab, &qmsg );
SaveSettings( hwndFrame );
}
// Clean up and exit
free( global.psuCopied );
if ( global.uconv1207 != NULL ) UniFreeUconvObject( global.uconv1207 );
if ( global.uconvCP != NULL ) UniFreeUconvObject( global.uconvCP );
WinDeleteAtom( hSATbl, global.cfUniText );
WinDestroyWindow( hwndFrame );
WinDestroyMsgQueue( hmq );
WinTerminate( hab );
return ( 0 );
}
/* ------------------------------------------------------------------------- *
* Window procedure for the main program dialog. *
* ------------------------------------------------------------------------- */
MRESULT EXPENTRY MainWndProc( HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2 )
{
static PDCMGLOBAL pGlobal;
PSWP pswp,
pswpOld;
POWNERITEM pownit;
ULONG ulVal;
USHORT usRow, usCol;
SHORT sRc,
sMIA;
UCHAR szError[ SZRES_MAXZ + 8 ],
szRes[ SZRES_MAXZ ],
szBuf[ 3 ],
szCPDesc[ CPDESC_MAXZ ];
switch( msg ) {
case WM_INITDLG:
// Save the global data to a window word
pGlobal = (PDCMGLOBAL) mp2;
WinSetWindowPtr( hwnd, 0, pGlobal );
WindowSetup( hwnd );
WinShowWindow( hwnd, TRUE );
return (MRESULT) FALSE;
case WM_COMMAND:
switch( SHORT1FROMMP( mp1 )) {
case ID_COPY:
ulVal = (ULONG) WinSendDlgItemMsg( hwnd, IDD_CHARMAP, VM_QUERYSELECTEDITEM, MPVOID, MPVOID );
CopyToClipboard( hwnd, SHORT1FROMMP(ulVal), SHORT2FROMMP(ulVal) );
break;
case ID_DELETE:
DeleteFromClipboard( hwnd );
break;
case ID_CLEAR:
if ( WinOpenClipbrd( pGlobal->hab )) {
WinEmptyClipbrd( pGlobal->hab );
WinCloseClipbrd( pGlobal->hab );
}
free( pGlobal->psuCopied );
pGlobal->psuCopied = (UniChar *) malloc( sizeof(UniChar) );
if (pGlobal->psuCopied) pGlobal->psuCopied[ 0 ] = 0;
WinEnableWindow( WinWindowFromID(hwnd, ID_CLEAR), FALSE );
WinEnableWindow( WinWindowFromID(hwnd, ID_DELETE), FALSE );
WinSendDlgItemMsg( hwnd, IDD_CLIPBOARD, CPW_SETTEXT, MPFROMP(""), MPFROMP(L"") );
break;
case ID_RECOPY:
UpdateClipboard( hwnd, pGlobal );
break;
case ID_FONT:
SelectSampleFont( hwnd );
break;
case ID_UCS:
pGlobal->fCopyUCS = !(pGlobal->fCopyUCS);
sMIA = pGlobal->fCopyUCS ? MIA_CHECKED : 0;
WinSendDlgItemMsg( hwnd, FID_MENU, MM_SETITEMATTR,
MPFROM2SHORT( ID_UCS, TRUE ),
MPFROM2SHORT( MIA_CHECKED, sMIA ));
break;
case ID_ABOUT: // Product information dialog
WinDlgBox( HWND_DESKTOP, hwnd, (PFNWP) AboutDlgProc, 0, IDD_ABOUT, NULL );
break;
case ID_QUIT: // Exit the program
WinPostMsg( hwnd, WM_CLOSE, 0, 0 );
return (MRESULT) 0;
default: break;
} // end WM_COMMAND messages
return (MRESULT) 0;
case WM_CONTROL:
switch( SHORT1FROMMP( mp1 )) {
case IDD_CODEPAGE:
if ( SHORT2FROMMP( mp1 ) == CBN_LBSELECT) {
sRc = (SHORT) WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_QUERYSELECTION,
MPFROMSHORT( LIT_FIRST ), MPFROMLONG( 0 ));
if ( sRc != LIT_NONE ) {
// Get the selected codepage number
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_QUERYITEMTEXT,
MPFROM2SHORT( sRc, 256 ), MPFROMP( szCPDesc ));
// (if it doesn't start with a number, it must be "Unicode")
if ( sscanf( szCPDesc, "%d", &ulVal ) < 1 ) ulVal = UNICODE;
// Now change to the selected codepage
if ( ! ChangeCodepage( hwnd, ulVal )) {
if ( ! WinLoadString( pGlobal->hab, 0,
IDS_ERROR_CHANGECP, SZRES_MAXZ-1, szRes ))
{
sprintf( szRes, "Unable to set codepage %d.");
}
sprintf( szError, szRes, ulVal );
ErrorPopup( szError );
//WinPostMsg( hwnd, WM_CLOSE, 0, 0 );
}
}
}
return (MRESULT) 0;
case IDD_OFFSET:
if ( SHORT2FROMMP( mp1 ) == CBN_LBSELECT) {
sRc = (SHORT) WinSendDlgItemMsg( hwnd, IDD_OFFSET, LM_QUERYSELECTION,
MPFROMSHORT(LIT_FIRST), MPVOID );
if ( sRc != LIT_NONE ) {
WinSendDlgItemMsg( hwnd, IDD_OFFSET, LM_QUERYITEMTEXT,
MPFROM2SHORT( sRc, 3 ), MPFROMP( szBuf ));
sscanf( szBuf, "%02X", &ulVal );
PopulateCharMap( hwnd, ulVal );
}
}
return (MRESULT) 0;
case IDD_CHARMAP:
switch ( SHORT2FROMMP( mp1 )) {
case VN_SELECT:
usRow = SHORT1FROMMP( mp2 );
usCol = SHORT2FROMMP( mp2 );
SelectCharacter( hwnd, usRow, usCol );
break;
case VN_ENTER:
CopyToClipboard( hwnd, SHORT1FROMMP(mp2), SHORT2FROMMP(mp2) );
break;
}
return (MRESULT) 0;
} // end WM_CONTROL messages
break;
case WM_DRAWITEM:
switch( SHORT1FROMMP( mp1 )) {
case IDD_CHARMAP:
// Repaint a cell in the valueset (ownerdraw)
pownit = (POWNERITEM) mp2;
if ( pownit->idItem == VDA_ITEM ) {
usRow = SHORT1FROMMP( pownit->hItem );
usCol = SHORT2FROMMP( pownit->hItem );
DrawVSItem( hwnd, pownit->hps, pownit->rclItem, usRow, usCol );
return (MRESULT) TRUE;
}
break;
default: break;
} // end WM_DRAWITEM messages
return (MRESULT) FALSE;
case WM_MINMAXFRAME:
pswp = (PSWP) mp1;
if ( pswp->fl & SWP_MINIMIZE ) {
WinShowWindow( WinWindowFromID(hwnd, IDD_GBCLIP), FALSE );
WinShowWindow( WinWindowFromID(hwnd, ID_CLEAR), FALSE );
WinShowWindow( WinWindowFromID(hwnd, ID_DELETE), FALSE );
WinShowWindow( WinWindowFromID(hwnd, ID_COPY), FALSE );
} else if ( pswp->fl & SWP_RESTORE ) {
WinShowWindow( WinWindowFromID(hwnd, IDD_GBCLIP), TRUE );
WinShowWindow( WinWindowFromID(hwnd, ID_CLEAR), TRUE );
WinShowWindow( WinWindowFromID(hwnd, ID_DELETE), TRUE );
WinShowWindow( WinWindowFromID(hwnd, ID_COPY), TRUE );
}
break;
case WM_SIZE:
UpdateWindowSize( hwnd, SHORT1FROMMP(mp2), SHORT2FROMMP(mp2) );
break;
case WM_WINDOWPOSCHANGED:
pswp = PVOIDFROMMP( mp1 );
pswpOld = pswp + 1;
// WinDefDlgProc doesn't dispatch WM_SIZE, so we do it here.
if ( pswp->fl & SWP_SIZE ) {
WinSendMsg( hwnd, WM_SIZE, MPFROM2SHORT(pswpOld->cx,pswpOld->cy), MPFROM2SHORT(pswp->cx,pswp->cy) );
}
break;
case WM_CLOSE:
WinPostMsg( hwnd, WM_QUIT, 0, 0 );
return (MRESULT) 0;
} /* end event handlers */
return WinDefDlgProc( hwnd, msg, mp1, mp2 );
}
/* ------------------------------------------------------------------------- *
* DrawVSItem *
* *
* Ownerdraw logic for painting a text cell in the valueset. (We have to *
* draw the cell contents ourselves, because the default valueset control *
* processing doesn't render codepage 1207 text properly.) *
* *
* ARGUMENTS: *
* HWND hwnd : Handle of the main application window. *
* HPS hps : Presentation space returned by WM_DRAWITEM. *
* RECTL rclItem: Bounds of the current valueset cell. *
* USHORT usRow : Row number (1-16) of the current valueset cell. *
* USHORT usCol : Column number (1-16) of the current valueset cell. *
* *
* RETURNS: N/A *
* ------------------------------------------------------------------------- */
void DrawVSItem( HWND hwnd, HPS hps, RECTL rclItem, USHORT usRow, USHORT usCol )
{
PDCMGLOBAL pGlobal; // global data
FATTRS fontAttrs; // current font attributes
FONTMETRICS fm; // current font metrics
SIZEF sfChSize; // character-box size
POINTL ptl; // current position
RECTL rclClip; // clipping rectangle
LONG lCW, lCH; // width, height of cell
BYTE ucCell; // current cell index (0-255)
CHAR szFont[ FACESIZE + 4 ]; // current font presparam
PCH pchGlyph; // multi-byte text of glyph to draw
PSZ pszFontName; // name of font in use
// Draw the cell background and border
WinFillRect( hps, &rclItem, SYSCLR_WINDOW );
GpiSetColor( hps, SYSCLR_WINDOWFRAME );
ptl.x = rclItem.xLeft;
ptl.y = rclItem.yBottom;
GpiMove( hps, &ptl );
ptl.x = rclItem.xRight - 1;
ptl.y = rclItem.yTop - 1;
GpiBox( hps, DRO_OUTLINE, &ptl, 0L, 0L );
// Get the current glyph value
pGlobal = WinQueryWindowPtr( hwnd, 0 );
ucCell = (usRow-1)*16 + (usCol-1);
pchGlyph = (PCH) pGlobal->szGlyph[ ucCell ];
if ( ! pGlobal->fSecondary[ucCell] ) {
ptl.x = rclItem.xLeft + 1;
ptl.y = rclItem.yBottom + 1;
GpiMove( hps, &ptl );
ptl.x = rclItem.xRight - 2;
ptl.y = rclItem.yTop - 2;
GpiSetColor( hps, SYSCLR_DIALOGBACKGROUND );
GpiBox( hps, DRO_FILL, &ptl, 0L, 0L );
return;
}
// Set the font and charset attributes
WinQueryPresParam( WinWindowFromID(hwnd, IDD_CHARMAP),
PP_FONTNAMESIZE, 0, NULL, sizeof(szFont), szFont, QPF_NOINHERIT );
pszFontName = strchr( szFont, '.') + 1;
memset( &fontAttrs, 0, sizeof( FATTRS ));
fontAttrs.usRecordLength = sizeof( FATTRS );
fontAttrs.usCodePage = ( pGlobal->ulCP == UNICODE ) ? PM_UNICODE: pGlobal->ulCP;
fontAttrs.fsType = FATTR_TYPE_MBCS;
fontAttrs.fsFontUse = FATTR_FONTUSE_NOMIX;
strcpy( fontAttrs.szFacename, pszFontName );
if (( GpiCreateLogFont( hps, NULL, 1L, &fontAttrs )) == GPI_ERROR ) return;
GpiSetCharSet( hps, 1L );
// Set the font size
lCW = rclItem.xRight - rclItem.xLeft;
lCH = rclItem.yTop - rclItem.yBottom;
sfChSize.cx = (lCW < lCH) ? MAKEFIXED( (lCW / 2) + 3, 0 ) : MAKEFIXED( (lCH / 2) + 3, 0 );
sfChSize.cy = sfChSize.cx;
GpiSetCharBox( hps, &sfChSize );
// Centre the glyph in the cell
GpiQueryFontMetrics( hps, sizeof(FONTMETRICS), &fm );
ptl.x = rclItem.xLeft + ( lCW / 2 );
ptl.y = rclItem.yBottom + (( lCH - fm.lXHeight ) / 2 );
GpiSetTextAlignment( hps, TA_CENTER, TA_BASE );
// Now draw the glyph
GpiSetColor( hps, SYSCLR_WINDOWTEXT );
rclClip.xLeft = rclItem.xLeft + 1;
rclClip.yBottom = rclItem.yBottom + 1;
rclClip.xRight = rclItem.xRight - 1;
rclClip.yTop = rclItem.yTop - 1;
GpiCharStringPosAt( hps, &ptl, &rclClip, CHS_CLIP, strlen(pchGlyph), pchGlyph, NULL );
}
/* ------------------------------------------------------------------------- *
* Window procedure for the glyph-preview control. *
* ------------------------------------------------------------------------- */
MRESULT EXPENTRY PreviewWndProc( HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2 )
{
PGLYPRCDATA pgpd;
HPS hps;
RECTL rcl, // preview window area
rclClip; // glyph clipping region
POINTL ptl,
aptl[ TXTBOX_COUNT ]; // used to query glyph size
FATTRS fontAttrs; // current font attributes
FONTMETRICS fm; // current font metrics
SIZEF sfChSize; // character cell size
CHAR szFont[ FACESIZE + 4 ]; // current font name
LONG lRW, // width of display rectangle
lGW; // width of current glyph
PSZ pszFontName;
switch( msg ) {
case WM_CREATE:
// set the control data
if ( !( pgpd = (PGLYPRCDATA) malloc( sizeof(GLYPRCDATA) ))) return (MRESULT) TRUE;
memset( pgpd, 0, sizeof(GLYPRCDATA) );
WinSetWindowPtr( hwnd, 0, pgpd );
break;
case WM_PAINT:
pgpd = WinQueryWindowPtr( hwnd, 0 );
hps = WinBeginPaint( hwnd, NULLHANDLE, NULLHANDLE );
WinQueryWindowRect( hwnd, &rcl );
WinFillRect( hps, &rcl, SYSCLR_WINDOW );
DrawNice3DBorder( hps, rcl );
if ( pgpd->szText[0] == 0 ) return (MRESULT) 0;
// define the actual display area inside the borders
rclClip.xLeft = rcl.xLeft + 2;
rclClip.yBottom = rcl.yBottom + 2;
rclClip.xRight = rcl.xRight - 3;
rclClip.yTop = rcl.yTop - 3;
lRW = rclClip.xRight - rclClip.xLeft;
// now draw the glyph
WinQueryPresParam( hwnd, PP_FONTNAMESIZE, 0, NULL, sizeof(szFont), szFont, QPF_NOINHERIT );
pszFontName = strchr( szFont, '.') + 1;
memset( &fontAttrs, 0, sizeof( FATTRS ));
fontAttrs.usRecordLength = sizeof( FATTRS );
fontAttrs.usCodePage = ( pgpd->ulCP == UNICODE ) ? PM_UNICODE: pgpd->ulCP;
fontAttrs.fsType = FATTR_TYPE_MBCS;
fontAttrs.fsFontUse = FATTR_FONTUSE_NOMIX;
strcpy( fontAttrs.szFacename, pszFontName );
if (( GpiCreateLogFont( hps, NULL, 1L, &fontAttrs )) == GPI_ERROR ) break;
sfChSize.cx = (rclClip.xRight < rclClip.yTop) ?
MAKEFIXED( (rclClip.xRight/3)*2, 0 ) : MAKEFIXED( (rclClip.yTop/3)*2, 0 );
sfChSize.cy = sfChSize.cx;
GpiSetCharBox( hps, &sfChSize );
GpiSetCharSet( hps, 1L );
GpiSetColor( hps, SYSCLR_WINDOWTEXT );
// some very wide glyphs might not fit into our character cell...
GpiQueryFontMetrics( hps, sizeof(FONTMETRICS), &fm );
GpiQueryTextBox( hps, strlen(pgpd->szText), pgpd->szText, TXTBOX_COUNT, aptl );
lGW = aptl[TXTBOX_BOTTOMRIGHT].x - aptl[TXTBOX_BOTTOMLEFT].x;
if ( lGW > lRW ) {
sfChSize.cx = MAKEFIXED( (fm.lEmInc*lRW)/lGW, 0 );
sfChSize.cy = sfChSize.cx;
GpiSetCharBox( hps, &sfChSize );
GpiQueryFontMetrics( hps, sizeof(FONTMETRICS), &fm );
GpiSetColor( hps, CLR_DARKBLUE );
}
// now centre the glyph and display it
ptl.x = rcl.xRight / 2;
ptl.y = ( rcl.yTop - fm.lXHeight ) / 2;
GpiSetTextAlignment( hps, TA_CENTER, TA_BASE );
GpiCharStringPosAt( hps, &ptl, &rclClip, CHS_CLIP, strlen(pgpd->szText), pgpd->szText, NULL );
WinEndPaint( hps );
return (MRESULT) 0;
case UPW_QUERYGLYPH:
pgpd = WinQueryWindowPtr( hwnd, 0 );
strncpy( (PSZ) mp1, pgpd->szText, sizeof(pgpd->szText)-1 );
return (MRESULT) TRUE;
case UPW_SETGLYPH:
pgpd = WinQueryWindowPtr( hwnd, 0 );
strncpy( pgpd->szText, (PSZ) mp1, sizeof(pgpd->szText)-1 );
WinInvalidateRect( hwnd, NULL, FALSE );
return (MRESULT) TRUE;
case UPW_SETCP:
pgpd = WinQueryWindowPtr( hwnd, 0 );
pgpd->ulCP = (ULONG) mp1;
return (MRESULT) TRUE;
case WM_PRESPARAMCHANGED:
switch ( (ULONG) mp1 ) {
case PP_FONTNAMESIZE:
WinInvalidateRect(hwnd, NULL, FALSE);
default: break;
}
break;
case WM_DESTROY:
if (( pgpd = WinQueryWindowPtr( hwnd, 0 )) != NULL )
free( pgpd );
break;
}
return ( WinDefWindowProc( hwnd, msg, mp1, mp2 ));
}
/* ------------------------------------------------------------------------- *
* Window procedure for the clipboard-preview control. *
* ------------------------------------------------------------------------- */
MRESULT EXPENTRY ClipWndProc( HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2 )
{
PCBVIEWDATA pdata; // control data
HPS hps; // presentation space
HDC hdc; // device-context handle
RECTL rcl; // window area
POINTL ptl; // used for positioning
FONTMETRICS fm; // current font metrics
CHAR szFont[ FACESIZE + 4 ]; // current font name
LONG lSBX, lSBY, // scrollbar position
lSBCX, lSBCY, // scrollbar size
lInc, // size of scrollbar change
lMargin; // margin to allow around clipping area
SHORT sMax; // scrollbar maximum range
SWP swp; // used to query control size
switch( msg ) {
case WM_CREATE:
// set the control data
if ( !( pdata = (PCBVIEWDATA) malloc( sizeof(CBVIEWDATA) )))
return (MRESULT) TRUE;
memset( pdata, 0, sizeof(CBVIEWDATA) );
WinSetWindowPtr( hwnd, 0, pdata );
hdc = WinOpenWindowDC( hwnd );
if ( ! DevQueryCaps( hdc, CAPS_VERTICAL_FONT_RES, 1,
&(pdata->lDPI) ) || !(pdata->lDPI) )
pdata->lDPI = 120;
// create the scrollbar
WinQueryWindowPos( hwnd, &swp );
lSBCX = 16;
lSBCY = swp.cy - 4;
lSBX = swp.cx - lSBCX - 2;
lSBY = 2;
pdata->hwndSB = WinCreateWindow( hwnd, WC_SCROLLBAR, NULL,
SBS_VERT | SBS_AUTOTRACK | WS_VISIBLE,
lSBX, lSBY, lSBCX, lSBCY,
hwnd, HWND_TOP, IDD_CLIPSCROLL, NULL, NULL );
pdata->fScrollBar = FALSE;
pdata->textState.ulOffset = 0;
WinSendMsg( pdata->hwndSB, SBM_SETTHUMBSIZE, MPFROM2SHORT( 1, 1 ), 0 );
WinSendMsg( pdata->hwndSB, SBM_SETSCROLLBAR, 0, MPFROM2SHORT( 0, 1 ));
break;
case WM_PAINT:
pdata = WinQueryWindowPtr( hwnd, 0 );
hps = WinBeginPaint( hwnd, NULLHANDLE, NULLHANDLE );
WinQueryWindowRect( hwnd, &rcl );
WinQueryWindowPos( pdata->hwndSB, &swp );
DrawNice3DBorder( hps, rcl );
// adjust our painting region to accomodate the scrollbar and borders
rcl.xLeft += 2;
rcl.xRight -= (swp.cx + 2);
rcl.yBottom += 2;
rcl.yTop -= 2;
WinFillRect( hps, &rcl, SYSCLR_WINDOW );
if ( !pdata->psuDisplay ) return (MRESULT) 0;
// now position and display the text
WinQueryPresParam( hwnd, PP_FONTNAMESIZE, 0, NULL,
sizeof(szFont), szFont, QPF_NOINHERIT );
SetClipTextAttrs( hps, szFont, pdata->lDPI );
GpiQueryFontMetrics( hps, sizeof(FONTMETRICS), &fm );
ptl.x = pdata->rclView.xLeft;
ptl.y = pdata->rclView.yTop - pdata->textState.ulLineHeight;
GpiSetColor( hps, SYSCLR_WINDOWTEXT );
// This seems to skew the character positions used by Gpi(Query)CharStringPos(At)
// - GpiSetTextAlignment( hps, TA_LEFT, TA_BASE );
DrawWrappedText( hps, &ptl, pdata->rclView, fm,
&(pdata->textState), pdata->psuDisplay );
WinEndPaint( hps );
// tell the scrollbar to update
WinSendMsg( hwnd, CPW_SBUPDATE, 0, 0 );
return (MRESULT) 0;
// Update control text and invalidate the viewport
case CPW_SETTEXT:
pdata = WinQueryWindowPtr( hwnd, 0 );
if ( pdata->psuDisplay ) free( pdata->psuDisplay );
if ( mp2 && (pdata->psuDisplay = calloc( UniStrlen((UniChar *)mp2)+1, sizeof(UniChar) )))
UniStrcpy( pdata->psuDisplay, (UniChar *) mp2 );
rcl = pdata->rclView;
WinInvalidateRect( hwnd, &rcl, FALSE );
return (MRESULT) TRUE;
// Recalculate the scrollbar settings
case CPW_SBUPDATE:
pdata = WinQueryWindowPtr( hwnd, 0 );
if ( pdata->textState.ulLines <= pdata->textState.ulHeight ) {
pdata->fScrollBar = FALSE;
pdata->textState.ulOffset = 0;
//WinShowWindow( pdata->hwndSB, pdata->fScrollBar );
WinSendMsg( pdata->hwndSB, SBM_SETTHUMBSIZE, MPFROM2SHORT( 1, 1 ), 0 );
WinSendMsg( pdata->hwndSB, SBM_SETSCROLLBAR, 0, MPFROM2SHORT( 0, 1 ));
}
else {
if ( !pdata->fScrollBar ) {
pdata->fScrollBar = TRUE;
//WinShowWindow( pdata->hwndSB, pdata->fScrollBar );
}
sMax = max( 0, (LONG)( pdata->textState.ulLines - pdata->textState.ulHeight ));
WinSendMsg( pdata->hwndSB, SBM_SETTHUMBSIZE,
MPFROM2SHORT( pdata->textState.ulHeight, pdata->textState.ulLines ), 0 );
WinSendMsg( pdata->hwndSB, SBM_SETSCROLLBAR,
MPFROMSHORT( pdata->textState.ulOffset ),
MPFROM2SHORT( 0, sMax ));
}
return (MRESULT) TRUE;
case WM_VSCROLL:
pdata = WinQueryWindowPtr( hwnd, 0 );
if ( pdata->textState.ulLines < pdata->textState.ulHeight )
break;
switch ( SHORT2FROMMP( mp2 )) {
case SB_LINEUP:
lInc = -1;
break;
case SB_LINEDOWN:
lInc = 1;
break;
case SB_PAGEUP:
lInc = min( (LONG)(-(pdata->textState.ulHeight)) + 1, -1 );
break;
case SB_PAGEDOWN:
lInc = max( pdata->textState.ulHeight-1, 1 );
break;
case SB_SLIDERPOSITION:
case SB_SLIDERTRACK:
lInc = SHORT1FROMMP( mp2 ) - pdata->textState.ulOffset;
break;
default:
return WinDefWindowProc( hwnd, msg, mp1, mp2 );
}
sMax = max( 0, (LONG)( pdata->textState.ulLines - pdata->textState.ulHeight ));
if ((LONG)( pdata->textState.ulOffset + lInc ) < 0 )
lInc = -pdata->textState.ulOffset;
else if (( pdata->textState.ulOffset + lInc ) > sMax )
lInc = sMax - pdata->textState.ulOffset;
pdata->textState.ulOffset += lInc;
if ( lInc ) {
rcl = pdata->rclView;
WinScrollWindow( hwnd, 0, lInc * pdata->textState.ulLineHeight, &rcl, &rcl, NULLHANDLE, NULL, SW_INVALIDATERGN );
WinSendMsg( pdata->hwndSB, SBM_SETPOS, MPFROM2SHORT( pdata->textState.ulOffset, 0 ), 0 );
WinInvalidateRect( hwnd, &rcl, FALSE );
}
break;
case WM_PRESPARAMCHANGED:
switch ( (ULONG) mp1 ) {
case PP_FONTNAMESIZE:
// Update the font-dependent dimensions
pdata = WinQueryWindowPtr( hwnd, 0 );
hps = WinBeginPaint( hwnd, NULLHANDLE, NULLHANDLE );
WinQueryPresParam( hwnd, PP_FONTNAMESIZE, 0, NULL,
sizeof(szFont), szFont, QPF_NOINHERIT );
SetClipTextAttrs( hps, szFont, pdata->lDPI );
GpiQueryFontMetrics( hps, sizeof(FONTMETRICS), &fm );
WinEndPaint( hps );
WinQueryWindowPos( pdata->hwndSB, &swp );
WinQueryWindowRect( hwnd, &rcl );
lMargin = fm.lAveCharWidth / 2;
pdata->rclView.xLeft = rcl.xLeft + 4 + lMargin;
pdata->rclView.yBottom = rcl.yBottom + 4 + fm.lExternalLeading;
pdata->rclView.xRight = rcl.xRight - lMargin - 4 - swp.cx;
pdata->rclView.yTop = rcl.yTop - 5 - fm.lExternalLeading;
pdata->textState.ulLineHeight = fm.lMaxAscender;
pdata->textState.ulHeight = ( pdata->rclView.yTop - pdata->rclView.yBottom ) / fm.lMaxAscender;
WinInvalidateRect( hwnd, NULL, FALSE );
break;
}
break;
case WM_DESTROY:
if (( pdata = WinQueryWindowPtr( hwnd, 0 )) != NULL ) {
if ( pdata->psuDisplay ) free( pdata->psuDisplay );
free( pdata );
}
break;
}
return ( WinDefWindowProc( hwnd, msg, mp1, mp2 ));
}
/* ------------------------------------------------------------------------- *
* SetClipTextAttrs *
* *
* Set the text and font attributes of the clipboard preview window. *
* *
* ARGUMENTS: *
* HPS hps : Handle of the control's presentation space. *
* PSZ pszFont: The name of the current font in use. *
* LONG lDPI : Current system font DPI *
* *
* RETURNS: N/A *
* ------------------------------------------------------------------------- */
void SetClipTextAttrs( HPS hps, PSZ pszFont, LONG lDPI )
{
FATTRS fontAttrs; // current font attributes
PSZ pszFontName; // name of the current font without the pt-size
SIZEF sfChSize; // character cell size
float fScale; // pts -> pels scaling factor
pszFontName = strchr( pszFont, '.') + 1;
if ( !pszFontName )
pszFontName = pszFont;
// Set the current font and text size
memset( &fontAttrs, 0, sizeof( FATTRS ));
fontAttrs.usRecordLength = sizeof( FATTRS );
fontAttrs.usCodePage = UNICODE;
fontAttrs.fsType = FATTR_TYPE_MBCS;
fontAttrs.fsFontUse = FATTR_FONTUSE_NOMIX;
strcpy( fontAttrs.szFacename, pszFontName );
if (( GpiCreateLogFont( hps, NULL, 1L, &fontAttrs )) != GPI_ERROR ) {
fScale = ( (double) lDPI / 72 );
sfChSize.cx = MAKEFIXED(( 10 * fScale ), 0 );
sfChSize.cy = sfChSize.cx;
GpiSetCharBox( hps, &sfChSize );
GpiSetCharSet( hps, 1L );
}
}
/* ------------------------------------------------------------------------- *
* DrawNice3DBorder *
* *
* Draw an attractive MLE-style 3D border around a control. *
* *
* ARGUMENTS: *
* HPS hps : Handle of the control's presentation space. *
* RECTL rcl: Rectangle defining the boundaries of the control. *
* *
* RETURNS: N/A *
* ------------------------------------------------------------------------- */
void DrawNice3DBorder( HPS hps, RECTL rcl )
{
POINTL ptl;
GpiSetColor( hps, SYSCLR_BUTTONLIGHT );
ptl.x = rcl.xLeft;
ptl.y = rcl.yBottom;
GpiMove( hps, &ptl );
ptl.x = rcl.xRight - 1;
GpiLine( hps, &ptl );
ptl.y = rcl.yTop - 1;
GpiLine( hps, &ptl );
GpiSetColor( hps, SYSCLR_DIALOGBACKGROUND );
ptl.x = rcl.xLeft;
ptl.y = rcl.yBottom + 1;
GpiMove( hps, &ptl );
ptl.x = rcl.xRight - 2;
GpiLine( hps, &ptl );
ptl.y = rcl.yTop;
GpiLine( hps, &ptl );
GpiSetColor( hps, SYSCLR_BUTTONDARK );
ptl.x = rcl.xLeft;
ptl.y = rcl.yBottom + 1;
GpiMove( hps, &ptl );
ptl.y = rcl.yTop - 1;
GpiLine( hps, &ptl );
ptl.x = rcl.xRight - 1;
GpiLine( hps, &ptl );
GpiSetColor( hps, CLR_BLACK );
ptl.x = rcl.xLeft + 1;
ptl.y = rcl.yBottom + 2;
GpiMove( hps, &ptl );
ptl.y = rcl.yTop - 2;
GpiLine( hps, &ptl );
ptl.x = rcl.xRight - 3;
GpiLine( hps, &ptl );
}
/* ------------------------------------------------------------------------- *
* DrawWrappedText *
* *
* Draw Unicode text within the specified rectangle, starting from the *
* specified point, wrapping it as needed. The position (pptPos) is updated *
* to the point after the last drawn character where the theoretical next *
* character should be drawn, if it existed. *
* *
* A maximum of 512 bytes (or 256 UniChars) will be drawn by this function. *
* *
* The codepage of the presentation space font attributes must be 1200 if *
* the text is to display correctly. *
* *
* ARGUMENTS: *
* HPS hps : Handle of the current presentation space (I) *
* PPOINTL pptPos : Position of the next character to be drawn (I/O) *
* RECTL rcl : Rectangle defining the text boundaries (I) *
* FONTMETRICS fm : Current font metrics (I) *
* PCBTEXTATTRS pAttrs : Number of the topmost visible line. (I) *
* UniChar * psuText: The Unicode text to draw (256 UniChars max) (I) *
* *
* RETURNS: ULONG *
* Number of characters drawn. *
* ------------------------------------------------------------------------- */
ULONG DrawWrappedText( HPS hps, PPOINTL pptPos, RECTL rcl, FONTMETRICS fm, PCBTEXTATTRS pAttrs, UniChar *psuText )
{
ULONG ulLine, // Current line (from 0)
ulStart, // Starting character index (== # already drawn)
ulChars, // Number of characters to draw
ulTotal; // Total length of the string
POINTL ptl, // Current drawing position
aptl[ 513 ] = {0}; // Array of individual character positions
ptl.x = pptPos->x;
ptl.y = pptPos->y;
ulTotal = UniStrlen( psuText ) * sizeof( UniChar );
if ( ulTotal > 512 ) ulTotal = 512;
ulLine = 0;
ulStart = 0;
while (( ulStart < ulTotal ))// && ( ptl.y >= rcl.yBottom ) &&
// ( ulLine <= ( pAttrs->ulOffset + pAttrs->ulHeight )))
{
// Calculate how many bytes (half-characters) can fit on the line...
// - first, get a rough estimate of the number of whole characters,
// based on the average character width
// - we could simply double this number to get the number of bytes, BUT
// we need to err on the side of being too long, so we multiply by 3
// instead
ulChars = (LONG) ((rcl.xRight - rcl.xLeft) / fm.lAveCharWidth ) * 3;
// - and then make sure it's an even number (this aligns it to the
// next character boundary)
if ( ulChars % 2 ) ulChars++;
// - and make sure it's not more than the total number of bytes
if ( ulChars > (ulTotal-ulStart) ) ulChars = ulTotal - ulStart;
// - OK, now we determine the actual character positions of our string
GpiQueryCharStringPosAt( hps, &ptl, 0, ulChars,
(PCH) psuText+ulStart, NULL, aptl );
// - and scan back from our estimate to find a point that fits
while ( aptl[ulChars].x > rcl.xRight ) ulChars -= 2;
if ( !ulChars ) break;
// Now draw the characters if they're within the visible area
if (( ulLine >= pAttrs->ulOffset ) &&
( GpiCharStringPosAt( hps, &ptl, &rcl, CHS_CLIP, ulChars,
(PCH) psuText+ulStart, NULL ) != GPI_OK ))
{
return ulStart;
}
// Increment the starting position
ulStart += ulChars;
// If we're not finished, move to the next line
if ( ulStart < ulTotal ) {
ulLine++;
ptl.x = rcl.xLeft;
if ( ulLine > pAttrs->ulOffset )
ptl.y -= pAttrs->ulLineHeight;
}
}
pptPos->x = ptl.x;
pptPos->y = ptl.y;
pAttrs->ulLines = ulLine+1;
return ulStart;
}
/* ------------------------------------------------------------------------- *
* WindowSetup *
* *
* Perform some initial setup on the application window. *
* *
* ARGUMENTS: *
* HWND hwnd: Handle of the main application window. *
* *
* RETURNS: N/A *
* ------------------------------------------------------------------------- */
void WindowSetup( HWND hwnd )
{
PDCMGLOBAL pGlobal; // global data
HPOINTER hicon; // main application icon
USHORT usSelCP = 0, // selected codepage index (from INI)
usSelWard = 0, // selected lead byte (from INI)
i, j; // loop counters
CHAR szIni[ CCHMAXPATH ], // name of program INI file
szFont[ FACESIZE ]; // last used font (from INI)
BOOL fCopyUni; // Unicode copy setting (from INI)
LONG x = 0, // window position values (from INI)
y = 0,
cx = 0,
cy = 0;
pGlobal = WinQueryWindowPtr( hwnd, 0 );
// Load the menu-bar
WinLoadMenu( hwnd, 0, ID_MAINPROGRAM );
WinSendMsg( hwnd, WM_UPDATEFRAME, (MPARAM) FCF_MENU, MPVOID );
// Set the window mini-icon
hicon = WinLoadPointer( HWND_DESKTOP, 0, ID_MAINPROGRAM );
WinSendMsg( hwnd, WM_SETICON, MPFROMP(hicon), MPVOID );
// Populate the codepage selector
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("942 (Japan SJIS-1978)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("943 (Japan SJIS-1990)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("944 (Korea SAA)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("949 (Korea KS-Code)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("948 (Taiwan SAA)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("950 (Taiwan BIG-5)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("1381 (China GB)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("1386 (China GBK)"));
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_INSERTITEM,
MPFROMSHORT(LIT_END), MPFROMP("Unicode (Plane 0)"));
// Activate ownerdraw mode for each valueset cell
for ( i = 0; i < 16; i++ ) {
for ( j = 0; j < 16; j++ ) {
WinSendDlgItemMsg( hwnd, IDD_CHARMAP, VM_SETITEMATTR,
MPFROM2SHORT(i+1, j+1), MPFROM2SHORT(VIA_OWNERDRAW, TRUE) );
}
}
// Check for saved INI file settings
memset( szIni, 0, sizeof(szIni) );
memset( szFont, 0, sizeof(szFont) );
LocateProfile( szIni );
pGlobal->hIni = PrfOpenProfile( pGlobal->hab, szIni );
LoadIniData( &x, pGlobal->hIni, PRF_APP_POSITION, PRF_KEY_LEFT );
LoadIniData( &y, pGlobal->hIni, PRF_APP_POSITION, PRF_KEY_BOTTOM );
LoadIniData( &cx, pGlobal->hIni, PRF_APP_POSITION, PRF_KEY_WIDTH );
LoadIniData( &cy, pGlobal->hIni, PRF_APP_POSITION, PRF_KEY_HEIGHT );
LoadIniData( &usSelCP, pGlobal->hIni, PRF_APP_SETTINGS, PRF_KEY_CODEPAGE );
LoadIniData( &usSelWard, pGlobal->hIni, PRF_APP_SETTINGS, PRF_KEY_WARD );
LoadIniData( szFont, pGlobal->hIni, PRF_APP_SETTINGS, PRF_KEY_FONT );
LoadIniData( &fCopyUni, pGlobal->hIni, PRF_APP_SETTINGS, PRF_KEY_UNICLIP );
// Now set the initial values
if ( usSelCP == 0 ) usSelCP = 8;
WinSendDlgItemMsg( hwnd, IDD_CODEPAGE, LM_SELECTITEM,
MPFROMSHORT( usSelCP ), MPFROMSHORT( TRUE ));
if ( usSelWard > 0 )
WinSendDlgItemMsg( hwnd, IDD_OFFSET, LM_SELECTITEM,
MPFROMSHORT( usSelWard ), MPFROMSHORT( TRUE ));
if ( strlen(szFont) > 0 )
strncpy( pGlobal->szFont, szFont, FACESIZE-1 );
UpdateSampleFont( hwnd, pGlobal->szFont );